As a specialist in infectious diseases, he participated in the DRDO biodefence preparedness program, and was an expert member of the technical advisory committee on plague constituted by the government of India in September 1994.

[1] He participated in the United Nations Biological Weapons Convention (BTWC) ad hoc group meetings in Geneva as a member of the Indian delegation, and conducted World Health Organization (WHO) Southeast Asia Regional Office meetings and workshops on infectious diseases.

Earned MVSc in Bacteriology and Hygiene (1979) and PhD in Veterinary Public Health and Epidemiology (1985) from Chaudhary Charan Singh Haryana Agricultural University in Hisar.

Senior scientific officer and head of the mycobacteriology laboratory, National Institute of Immunology in New Delhi from 1984 to Nov.1990.

He conducted disease outbreak investigations as DRDO Life Sciences team leader during biological emergencies such as: